It starts as a tickle. An itch. An inkling of a sensation so faint that he hardly recognizes it. When he finally notices it, this faint ghost of a feeling, it explodes. He suddenly feels his body again, and it is on fire. For a million eternities he has felt nothing, and now he relishes in the pain.
For the pain tells him that he lives. That he exists.
Through the pain, he feels his body rise.